*{
    margin: 0;
    padding: 0;
    line-height: 1;
    box-sizing: border-box;
    user-select: none;
}
body{
    background-color: #f4f4f4;
    /* -webkit-user-select: none; */
    font-family: Microsoft YaHei, Tahoma, Helvetica, Arial, sans-serif;
    font-size: 12px;
}
:root{
    --base-color:#ff5f16;

}
a{
    color: #333;
    text-decoration: none;
}
ul,li{
    list-style: none;
}
.dsn{
    display: none;
}


/* 头部 */
header{
    height: 90px;
    width: 100%;
    position: sticky;
    top: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #fff;
    z-index: 999;
}
 header img{
    width: 135px;
    height: 48px;
    margin-left: 40px;
}
header .right{
    display: flex;
    font-size: 16px;

}
header .right nav{
    display: flex;
    justify-content: space-around;
    align-items: center;
   
}
header .right nav a{
    margin-right: 50px;
    position: relative;
    transition: all .5s;
}
 header .right nav a.active::after{
    content: "";
    transition: all .5s;
    display: block;
    background-color: #ff5f16;
    position: absolute;
    height: 2px;
    width: 100%;
    top: 30px;
    left: 0;
    
}
/* 缩放动画 */
.link:hover{
    animation: scale .5s;
}
@keyframes scale{
    0%{
        transform: scale(1);
    }
    50%{
        transform: scale(1.2);
    }
    100%{
        transform: scale(1);
    }
}

header .buy{
    width: 136px;
    height: 44px;
    margin-right: 50px;
    background: linear-gradient(180deg, #ff7620, #ff5f16);
    border-radius: 4px;
    border: none;
    color: #fff;
    font-size: 16px;
}
/* nav */
 .active{
    color: var(--base-color);
}

/* 底部 */
footer{
    width: 100%;
    height: 260px;
    background-color: #222426;
    overflow: hidden;
}
footer .info{
    width: 980px;
    height: 200px;
    margin: 0 auto;
    padding-top: 26px;
    position: relative;
}
footer .info .l{
    display: flex;
    float: left;
}
footer .info .l img{
    margin-right: 27px;
    width: 68px;
    height: 108px;
}
footer .info .l .text{
    color: #fff;
    width: 265px; 
}
footer .info .l .text h2{
    margin-bottom: 18px;
    font-size: 18px;
    font-weight: 400;
}
footer .info .l .text p{
    line-height: 18px;
    font-size: 12px;
    margin-bottom: 8px;
}
footer .info .r{
    display: flex;
    float: right;
}
footer .info .r img{
    margin-right: 30px;
    width: 99px;
    height: 96px;
}
footer .info .r .text{
    color: #fff;
    width: 265px; 
}
footer .info .r .text h2{
    margin-bottom: 18px;
    font-size: 18px;
    font-weight: 400;
}
footer .info .r .text p{
    line-height: 18px;
    font-size: 12px;
    margin-bottom: 8px;
}
footer .beian{
    text-align: center;
    color: #fff;
    position: absolute;
    bottom: 0;
    width: 100%;
    line-height: 2;
    padding-bottom: 8px;
}
footer .goods{
    width: 100%;
    background-color: #fff;
    height: 52px;
    text-align: center;
    
}
footer .goods img{
    width: 34px;
    height: 48px;
}